Trolley-wheel.



B. F. SMITH.

TROLLEY WHEEL. APPLICATION FILED 11mm. 1909.

Patented Jan. 18,1910.

tnirrnn sTATEs PATENT orrion.

IBEBTRUM E. SMITH, OF NATRONA, PENNSYLVANIA, ASSIGNOR 0F ONE-HALF 'IO JACOB MARKLE, OENATRONA, PENNSYLVANIA.

V rnoL EY-wrtriiin Specification of Letters Patent.

Patented Jan. 18, 1910.

Application fil ed February 27; 1909. Serial No. 480,316.

To all whom it may concern:

Be it known that I, BERTRUM F. SMITH,

a citizen of the United States of America,

in Trolley-VVl1eels, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to trolley wheels, and the primary object of my invention is to provide a sectional wheel having an indurate wearing member that can be easily removed and renewed when worn.

Another object of this invention is to provide a trolley wheel with a detachable Wearing member and means for establishing a positive electrical connection between the wearing member and the hub of the wheel.

A further object of this invention is to obviate the necessity of dispensing with an entire wheel when a portion of the same has become worn by traveling upon a trolley wire or electrical conduit. i

A still further object of the invention is to provide a simple, durable and inexpensive trolley wheel that can be used in connection with the present type of trolley harp and To put my invention into practice, I- pro-' vide two circular side plates 1 with peripheral offset flanges 2, the offsets providing shoulders forming seats 3 for an ,annular wearing member f having a peripheral. groove 5. The wearing member 4 is substantially V-shaped in crosssection, and the groove 5 thereof is adapted to receive a trolley wire or electrical conductor (not shown). To clamp the side plates 1 upon the wearing member 4, said plates are provided with alining openings 6 and extending through said openings is a tubular cylindrical hub '7 having one end thereof provided with an annular flange 8, while the opposite end thereof is threaded, as at 10, to receive a nut 11.

' The inner faces of the parallel flanges Q. of the side plates 1 are provided with radially disposed grooves 12, while the outer faces ofthe wearing member 4: are provided with radially disposed grooves 13 confronting the grooves 12 and providing radially disposed openings for the ends 14: of a conducting wire 15 coiled around the tubular hub 7, said wire contacting with said hub and establishing a positive electrical connection between the annular wearing member 4L and said hub. I The tubular hub 7 is adapted to receive the spindle or journal pin 16 of a harp 17,

carried bya trolley pole 18.

In practice, the annular wcaring member 4t is'm'ade of bronze or a similar piece of durable metal, while the side plates 1 can be made of a less expensive metal and used in connection with numerous wearing members. 'The wheel is designed whereby the wearing niember will only have to be renewed when the wheel has become worn, and itwill be observed that the hub can also be renewed if the occasion demands.

Vhile in the drawings forminga part of this application there are illustrated the preferred embodiments of my invention, I would have it understood that the detail construction thereofcan be varied or changed as to shape, proportionand manner of assemblage withoutdeparting from the spirit of the in-' vention as defined in the appended claim.

7 Having now described my invention what I claim as new, is

Atrolley wheel comprising a pair of side plates centrally apertured and each having offset peripheral flanges, the offsets forming shoulders, a peripherally-grooved annular -.wearing-member substantially V-shaped in cross-section seated in sald shoulders with the outer faces of its side walls engaging :the inner faces of the peripheral flanges. each side wall of the wearing-member provided with agroove in the outer face thereof, said grooves extending'radial'ly to the wheel axis and located on opposite sides of the wheel opposite directions into said radial grooves,

axis, said peripheral flanges having similar as and for the purpose described. 1) radial grooves registering with the grooves In testimony whereof I aflix my signature in the wearing-member, and a tubular hub in the presence of two Witnesses.

in said side plates, means for securing the BERTRUM F. SMITH. tubular hub in position, and a conducting Witnesses:

Wire coiled on the hub between the side A. J. ROLL,

plates with the ends thereof extending in ALBT. J. ROLL. 

